3 years ago

Urgent!!! PLEASE HELP, FAST!!!

1 answer:

6 0

The best way to solve this is to put it into a proportion:
$\frac{x}{84} = \frac{ \frac{1}{4} }{ \frac{3}{4} }$
So you cross multiply to get:
$21= \frac{3}{4} x$ (the 21 is from $\frac{1}{4}$ •84)
Then multiply by $\frac{4}{3}$
And you get $28, so the reduced price would be $28.

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you must have made a typo here.

none of the answer options are correct for the given problem.

let me just show you what you told me, and how I can solve at least this :

2a/4 = b/4

this simply means (multiply both sides by 4) :

2a = b

so, 5b is then (multiplying both sides by 5) :

5×2a = 5b

10a = 5b

but again, "10a" is not among the offered answers.

so, I don't know if you made a mistake with the basic problem or with the answer options.

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